C++ IAAFDictionary::CreateInstance方法代码示例

static HRESULT CreateAAFFile(const aafWChar * pFileName, testDataFile_t *dataFile, testType_t /* testType */)
{
  IAAFFile*					pFile = NULL;
  IAAFHeader*					pHeader = NULL;
  IAAFDictionary*				pDictionary = NULL;
  IAAFMob*					pMob = NULL;
  IAAFMasterMob*				pMasterMob = NULL;
  IAAFClassDef*   pKLVDataCD=NULL;
  IAAFClassDef*   pCommentMarkerCD=NULL;
  IAAFTypeDef*    pUnknownBaseType=NULL;
  IAAFTypeDef*	pInt32BaseType=NULL;
  // IAAFTypeDef* pASCIIStringBaseType=NULL;
  IAAFKLVData* pKLVData=NULL;

  IAAFEssenceAccess*			pEssenceAccess = NULL;
  IAAFEssenceMultiAccess*		pMultiEssence = NULL;
  IAAFEssenceFormat*			pFormat = NULL;
  IAAFEssenceFormat*	format = NULL;
  IAAFLocator*	pLocator = NULL;
  IAAFClassDef*	pCDMasterMob = 0;
  IAAFClassDef                *pCDNetworkLocator = 0;
  IAAFDataDef                 *pDdefSound = 0;
  IAAFDataDef*	pDDefSceneDesc=0;
  IAAFEventMobSlot  *pEventSlot=0;
  IAAFMobSlot   *pSlot=0;
  IAAFSequence  *pSeqSceneDesc=0;
  IAAFSegment   *pSegment=0;
  IAAFEvent     *pEventSceneDesc=0;
  IAAFComponent *pComp=0;
  HRESULT	      hr = AAFRESULT_SUCCESS;


  // !!!Previous revisions of this file contained variables here required to handle external essence
  aafMobID_t					masterMobID;
  aafProductIdentification_t	ProductInfo;
  aafRational_t   editRate = {30000, 1001};
  aafRational_t	sampleRate = {44100, 1};
  aafRational_t	eventTimebase = {30000, 1001};
  aafPosition_t	position=0;
  FILE*	pWavFile = NULL;
  unsigned char	dataBuff[4096], *dataPtr;
  //	aafUInt32	bytesWritten;
  aafUInt32	dataOffset, dataLen;
  aafUInt16	bitsPerSample, numCh;
  aafInt32	n, numSpecifiers;
  aafUID_t	essenceFormatCode, testContainer;
  aafUInt32 samplesWritten, bytesWritten;
  // delete any previous test file before continuing...
  char chFileName[1000];
  convert(chFileName, sizeof(chFileName), pFileName);
  remove(chFileName);
  if(dataFile != NULL)
    {
      // delete any previous test file before continuing...
      char chFileName[1000];
      convert(chFileName, sizeof(chFileName), dataFile->dataFilename);
      remove(chFileName);
    }


  aafProductVersion_t v;
  v.major = 1;
  v.minor = 0;
  v.tertiary = 0;
  v.patchLevel = 0;
  v.type = kAAFVersionUnknown;

  ProductInfo.companyName = companyName;
  ProductInfo.productName = productName;
  ProductInfo.productVersion = &v;
  ProductInfo.productVersionString = NULL;
  ProductInfo.productID = NIL_UID;
  ProductInfo.platform = NULL;

  check(AAFFileOpenNewModifyEx (pFileName, &kAAFFileKind_Aaf4KBinary, 0, &ProductInfo, &pFile));
  check(pFile->GetHeader(&pHeader));

  // test
  // Get the AAF Dictionary so that we can create valid AAF objects.
  check(pHeader->GetDictionary(&pDictionary));

  check(pDictionary->LookupClassDef(AUID_AAFMasterMob,
				    &pCDMasterMob));
  check(pDictionary->LookupClassDef(AUID_AAFNetworkLocator,
				    &pCDNetworkLocator));
  check(pDictionary->LookupDataDef(kAAFDataDef_Sound,
				   &pDdefSound));

  // !!!Previous revisions of this file contained code here required to handle external essence

  // Get a Master MOB Interface
  check(pCDMasterMob->
	CreateInstance(IID_IAAFMasterMob, 
		       (IUnknown **)&pMasterMob));
  // Get a Mob interface and set its variables.
  check(pMasterMob->QueryInterface(IID_IAAFMob, (void **)&pMob));
  check(pMob->GetMobID(&masterMobID));
  check(pMob->SetName(L"A Master Mob"));
	
  // Add it to the file 
//.........这里部分代码省略.........

static HRESULT CreateAAFFile(
    aafWChar * pFileName,
    aafUID_constref fileKind,
    testRawStorageType_t rawStorageType,
    aafProductIdentification_constref productID)
{
	IAAFFile*				pFile = NULL;
	IAAFHeader*				pHeader = NULL;
	IAAFDictionary*			pDictionary = NULL;
	IAAFSourceMob*			pSourceMob = NULL;
	IAAFMob*				pMob = NULL;
	IAAFDataEssenceDescriptor*		pDataEssenceDesc = NULL;
	IAAFEssenceDescriptor*	pEssDesc = NULL;

	HRESULT			hr = AAFRESULT_SUCCESS;


	try
	{
		// Remove the previous test file if any.
		RemoveTestFile(pFileName);


		// Create the AAF file
		checkResult(CreateTestFile( pFileName, fileKind, rawStorageType, productID, &pFile ));

		// We can't really do anthing in AAF without the header.
		checkResult(pFile->GetHeader(&pHeader));

		// Get the AAF Dictionary so that we can create valid AAF objects.
		checkResult(pHeader->GetDictionary(&pDictionary));
 		
		// Create a source mob
		CAAFBuiltinDefs defs (pDictionary);
		checkResult(defs.cdSourceMob()->
					CreateInstance(IID_IAAFSourceMob, 
								   (IUnknown **)&pSourceMob));

		checkResult(pSourceMob->QueryInterface(IID_IAAFMob, (void **)&pMob));

		checkResult(pMob->SetMobID(TEST_MobID));
		
		RegisterDataEssenceDescriptorTest( pDictionary );

		checkResult(pMob->SetName(L"DataEssenceDescriptorTest"));
		checkResult( pDictionary->CreateInstance( TestDataEssenceDescriptorClassID,
							   IID_IAAFDataEssenceDescriptor,
							   (IUnknown**)&pDataEssenceDesc ) );		

		aafUID_t		dataEssenceCoding;
   		memset(&dataEssenceCoding, 0, sizeof(aafUID_t));
		checkResult(pDataEssenceDesc->SetDataEssenceCoding(dataEssenceCoding));
		
		checkResult(pDataEssenceDesc->QueryInterface(IID_IAAFEssenceDescriptor, (void **)&pEssDesc));
		checkResult(pSourceMob->SetEssenceDescriptor(pEssDesc));

		// Add the MOB to the file
		checkResult(pHeader->AddMob(pMob));
	}
	catch (HRESULT& rResult)
	{
		hr = rResult;
	}
	
  
	// Cleanup and return
	if (pEssDesc)
		pEssDesc->Release();

	if (pDataEssenceDesc)
		pDataEssenceDesc->Release();

	if (pMob)
		pMob->Release();

	if (pSourceMob)
		pSourceMob->Release();

	if (pDictionary)
		pDictionary->Release();

	if (pHeader)
		pHeader->Release();

	if (pFile)
	{
		pFile->Save();
		pFile->Close();
		pFile->Release();
	}

	return hr;
}